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- he geological hazards by abandoned coal mine woring in Mentougou region is very serious.In this region,high-resolution earth resistivity method has been used to detect the old mined out area. 针对门头沟区采空灾害十分严重的情况,采用二维自动地电阻率方法进行探测。
- Eraluating the mined out area is one of effective and dependable ways for exploring placer gold. 指出以过采区为依据寻找砂金矿可靠性大,风险度小,是行之有效的途径之一。
- The technical measures of the filling of mined out area employed in Dazhuangzi Gold Mine were introduced and an assumption to improve it further was put forward. 文中叙述了大庄子金矿井下采空区充填工艺,介绍了充填过程中的技术措施,并提出了进一步改进设想。
- On the basis of the investigation,with the rockmass mechanics and numerical simulation, the mechanism of roof falling of stope and mined out area on a large scale are discussed compendiously. 根据近几年对石膏矿山的现场调查,结合岩体力学的相关理论和数值模拟技术,对石膏矿采场顶板冒落及大规模采空区顶板冒落机理作了简要探讨,据此提出了预防采空区冒落的措施。
- Spacial location of mined out areas can be tested,which will guide next designing work. 通过现场钻探验证,揭示采空区的空间位置,对下步设计工作具有指导意义。
- After the whole area had been mined out,all the miners have left. 整个地区的矿全都挖光后,所有的矿工就都离开了这里。
- After the whole area has been mined out, all the miners have left. 整个地区的矿全都挖光后,所有的矿工就都离开了这里。
- The road caved in above the old mine. 旧矿上面的路面下沉了。
- mined out area 采空区
- More than60 pits in old mining areas are being extended. 老矿区的六十多个矿井正在扩建。
- Statistical analysis of the character of acoustic emission for nonlinear dynamical damage in mined out areas supported by composite rock materials 岩石基复合材料支护采空区动力失稳声发射特征统计分析
- Keywords Mine areas;mined out areas;complicated physical exploration;drilling;Zhangqiu in Jinan city;Yuegongqiao; 矿区;采空区;综合物探;钻探;月宫桥;济南章丘;
- The chief purser assigns out area of responsibility. 乘务长给我们分配责任区域。
- Ores from the old mine are already smelted,but those from the new mine are not. 旧宝藏的矿石已经制炼过,新宝藏的矿石则否。
- More than 60 pits in old mining areas are being extended. 老矿区的六十多个矿井正在扩建。
- Second-rate artists will dig in the old mines, but only first-rate artists can get something out of the new mine. 第二流的艺术家将在旧宝藏中发掘,唯有第一流的艺术家才能由新宝藏中得到一些东西。
- I rest under shade trees and dug out areas. 我在树荫下休息并掘地。
- It was an old mining town inhabited by some escapees from City 17. 它是一个老矿场,曾经居住着一些17号城市的逃亡者。"
- mined out areas 采空区
- Through analysis of geological data of Anfu old mining area, the author has indicated the way of Coal prospecting. 通过对安福老矿区的地质资料分析,指出老矿区找煤方向。